Home / 20,076.66-27,703.82-11,579.56

Finding the Fourth Proportional to 20,076.66, 27,703.82 and 11,579.56

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Solution

The fourth proportional to 20,076.66, 27,703.82 and 11,579.56 is: 15,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.66 : 27,703.82 = 11,579.56 : x
  2. Step 2: Convert to fraction form
    20,076.66/27,703.82 = 11,579.56/x
  3. Step 3: Cross multiply
    20,076.66x = 27,703.82 × 11,579.56
  4. Step 4: Simplify right side
    20,076.66x = 320,798,005.61
  5. Step 5: Solve for x
    x = 320,798,005.61/20,076.66
  6. Step 6: Final answer
    x = 15,978.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.